How Apple Watch could help you know you’re getting sick days before symptoms

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With the new Vitals app, Apple Watch users can swiftly access crucial overnight health metrics, receive timely alerts when two or more metrics deviate from their usual range, and gain enhanced insights into their overall health.

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How to set-up the Vitals app on Apple Watch:

In the Vitals app , you can view overnight health metrics—heart rate, respiratory rate, wrist temperature, blood oxygen*, and sleep duration—to get a better understanding of your daily health status.

You can also view your training load to see how the intensity of your workouts may impact your body over time. To learn more, see Track your training load.

The Vitals app establishes a typical range for each of your health metrics collected as you sleep. If multiple metrics are outside your typical range, you receive a notification along with context for factors that may be involved—like medications, elevation changes, or illness, for example.

Note: Vitals app measurements are not intended for medical use. The ability to measure blood oxygen is no longer available on Apple Watch units sold by Apple in the United States on or after January 18, 2024. These units are indicated with part numbers ending in LW/A. Learn how to identify your Apple Watch.

View your overnight vitals

Go to the Vitals app on your Apple Watch.
Do any of the following:
- Learn more about your overnight vitals: Tap Overnight Vitals, then tap More Info to learn more about the health results you may see, and what it means when your vitals are within their typical ranges or if there is has been a change between one of your metrics compared to your recent baseline.
- View your health metrics: Turn the Digital Crown to a metric, then tap the metric to learn more about the metric and factors that may cause an increase or decrease.
- View your training load: Turn the Digital Crown to Training Load. Tap Training Load to view it in the Activity app .

To view your overnight vitals for the last 7 days, tap at the top-left corner. To return to your overnight vitals summary, tap .

View your vitals on iPhone or iPad

Go to the Health app on your iPhone or iPad
Do one of the following:
- On iPhone: Tap Browse, then tap Vitals.
- On iPad: Tap the sidebar, then tap Vitals.
Tap a health metric to learn more.

Turn on Vitals notifications

By default, you receive notifications when at least two of your overnight metrics are outside of your typical range. If you’ve turned off notifications for Vitals, you can turn them back on.

Go to the Settings app on your Apple Watch, then tap Vitals.
Turn on Notifications.

Note: The back of your Apple Watch needs skin contact for features like wrist detection, haptic notifications, blood oxygen level measurements, and the heart rate sensor. Wearing your Apple Watch with the right fit—not too tight, not too loose, and with room for your skin to breathe—keeps you comfortable and lets the sensors do their job. For more information, see the Apple Support article Wearing your Apple Watch.

Instructions by: Apple Support